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[Tests] Deduplicate power-of-two assertion message #36

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Merged
mrz1836 merged 1 commit into from
Oct 10, 2025
Merged

[Tests] Deduplicate power-of-two assertion message #36

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8 changes: 5 additions & 3 deletions power_of_two_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -6,16 +6,18 @@ import (
"github.com/stretchr/testify/assert"
)

const powerOfTwoMessage = "%d should be a power of 2"

func TestIsPowerOf2(t *testing.T) {
// Testing the function
numbers := []int{1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 1048576, 70368744177664}
for _, num := range numbers {
assert.True(t, IsPowerOfTwo(num), "%d should be a power of 2", num)
assert.True(t, IsPowerOfTwo(num), powerOfTwoMessage, num)
}

numbers = []int{-1, 0, 41, 13}
for _, num := range numbers {
assert.False(t, IsPowerOfTwo(num), "%d should be a power of 2", num)
assert.False(t, IsPowerOfTwo(num), powerOfTwoMessage, num)
}
}

Expand All @@ -25,6 +27,6 @@ func TestNextLowerPowerOf2(t *testing.T) {
expected := []uint{16, 32, 64, 128, 0, 131072}

for i, num := range numbers {
assert.Equal(t, expected[i], NextLowerPowerOfTwo(num), "%d should be a power of 2", num)
assert.Equal(t, expected[i], NextLowerPowerOfTwo(num), powerOfTwoMessage, num)
}
}